magic! now it works on web kit

crates/treehouse/src/html/markdown.rs

@@ -527,7 +527,8 @@ where
                                 escape_html(&mut self.writer, &branch.attributes.id)?;
                                 self.writer.write_str("\">")?;
                             }
-                            self.writer.write_str("<img is=\"th-emoji\" title=\":")?;
+                            self.writer
+                                .write_str("<img data-cast=\"emoji\" title=\":")?;
                             escape_html(&mut self.writer, name)?;
                             self.writer.write_str(":\" src=\"")?;
                             escape_html(&mut self.writer, &self.config.site)?;

crates/treehouse/src/html/tree.rs

@@ -45,9 +45,9 @@ pub fn branch_to_html(
     }
 
     let component = if let Content::Link(_) = branch.attributes.content {
-        "th-b-linked"
+        "b-linked"
     } else {
-        "th-b"
+        "b"
     };
 
     let linked_branch = if let Content::Link(link) = &branch.attributes.content {
@@ -64,7 +64,7 @@ pub fn branch_to_html(
 
     write!(
         s,
-        "<li is=\"{component}\" class=\"{class}\" id=\"{}\"{linked_branch}{do_not_persist}>",
+        "<li data-cast=\"{component}\" class=\"{class}\" id=\"{}\"{linked_branch}{do_not_persist}>",
         EscapeAttribute(&branch.html_id)
     )
     .unwrap();

crates/treehouse/src/tree/attributes.rs

@@ -107,7 +107,7 @@ pub enum Content {
 
 #[derive(Debug, Default, Clone, PartialEq, Eq, Deserialize)]
 pub struct Classes {
-    /// Classes to append to the branch itself (<li is="th-b">).
+    /// Classes to append to the branch itself (<li data-cast="b">).
     #[serde(default)]
     pub branch: String,